ISO 12619-6:2017

INTERNATIONAL ISO
STANDARD 12619-6
First edition
2017-02
Road vehicles — Compressed gaseous
hydrogen (CGH2) and hydrogen/
natural gas blend fuel system
components —
Part 6:
Automatic valve
Véhicules routiers — Composants des circuits d’alimentation pour
hydrogène gazeux comprimé (CGH2) et mélanges de gaz naturel et
hydrogène —
Partie 6: Valve automatique
Reference number
ISO 12619-6:2017(E)
©
ISO 2017

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ISO 12619-6:2017(E)

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ii © ISO 2017 – All rights reserved

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ISO 12619-6:2017(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Marking . 2
5 Construction and assembly . 2
6 Tests . 2
6.1 Applicability . 2
6.2 Hydrostatic strength . 3
6.3 Leakage . 3
6.4 Continued operation . 3
6.5 Insulation resistance . 4
6.6 Minimum opening voltage . 4
6.7 Pressure impulse . 4
Bibliography . 6
© ISO 2017 – All rights reserved iii

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ISO 12619-6:2017(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by ISO/TC 22, Road vehicles, Subcommittee SC 41, Specific aspects for
gaseous fuels.
A list of all the parts in the ISO 12619 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

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INTERNATIONAL STANDARD ISO 12619-6:2017(E)
Road vehicles — Compressed gaseous hydrogen
(CGH2) and hydrogen/natural gas blend fuel system
components —
Part 6:
Automatic valve
1 Scope
This document specifies tests and requirements for the automatic valve, a compressed gaseous
hydrogen (CGH2) and hydrogen/natural gas blends fuel system component intended for use on the
types of motor vehicles defined in ISO 3833.
It is applicable to vehicles using compressed gaseous hydrogen (CGH2) in accordance with ISO 14687-1
or ISO 14687-2 and hydrogen/natural gas blends using natural gas in accordance with ISO 15403-1 and
ISO/TR 15403-2. It is not applicable to the following:
a) liquefied hydrogen (LH2) fuel system components;
b) fuel containers;
c) stationary gas engines;
d) container mounting hardware;
e) electronic fuel management;
f) refuelling receptacles.
NOTE 1 It is recognized that miscellaneous components not specifically covered herein can be examined to
meet the criteria of this document and tested according to the appropriate functional tests.
NOTE 2 All references to pressure in this document are to be considered gauge pressures unless otherwise
specified.
NOTE 3 This document may not apply to fuel cell vehicles in compliance with international regulations.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 12619-1, Road vehicles — Compressed gaseous hydrogen (CGH2) and hydrogen/natural gas blend fuel
system components — Part 1: General requirements and definitions
ISO 12619-2, Road vehicles — Compressed gaseous h
...